Insect trap



FIG. 1 is a front elevational view of the claimed design for an insect trap, wherein the right side elevational view, left side elevational view and rear elevational view are identical;

FIG. 2 is a top plan view of the insect trap of FIG. 1; and,

FIG. 3 is a bottom plan view of the insect trap of FIG. 1. 

The ornamental design for an insect trap, as shown and described. 